CN220065609U

CN220065609U - Wire harness fuse

Info

Publication number: CN220065609U
Application number: CN202321402342.7U
Authority: CN
Inventors: 陈礽泰; 朱嘉鹏; 张钰佳
Original assignee: Zeeman Fuses Manufacturing Xiamen Co ltd
Current assignee: Zeeman Fuses Manufacturing Xiamen Co ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2023-11-21
Anticipated expiration: 2033-06-02

Abstract

The utility model discloses a wire harness fuse which comprises a lower shell, an upper shell, a fuse body, a first wire and a second wire, wherein the upper shell is fixedly connected to the lower shell, a containing cavity penetrating front and back is formed between the upper shell and the lower shell, an inner core of the first wire and an inner core of the second wire are fixedly connected to front and back end parts of the fuse body respectively, the fuse body is arranged in the containing cavity, and the first wire and the second wire extend out from front and back ends of the containing cavity respectively. This pencil fuse structure has simplified prior art with the structure of pencil and fuse body integration in the fuse box, and the structure of whole fuse is small and exquisite, and it divides into independent wire with the pencil among the prior art, forms single fuse, can directly insert in the circuit, and is more convenient in actual circuit layout.

Description

Wire harness fuse

Technical Field

The present utility model relates to a wire harness fuse.

Background

The fuse is commonly called as a fuse, is an electrical element for ensuring the safe operation of a circuit, and when the circuit exceeds a load or is in short circuit, the fuse breaks the circuit through the fusing of a melt of the fuse, so that the circuit and electric equipment are protected, important elements are prevented from being damaged due to short circuit or overload faults, and the fuse is one of the most common protection devices.

The patent of Chinese patent grant publication No. CN218939585U, named as a high-protection-level low-voltage fuse box, comprises an upper cover and a main body assembly, wherein the upper cover is detachably connected with the main body assembly, and a sealing ring capable of realizing end face sealing and side face sealing simultaneously is arranged between the upper cover and the main body assembly; a valve structure for improving the tightness is arranged on the sealing ring; the main body assembly is provided with a wire harness outlet, the wire harness outlet is spliced and matched with a wire harness, and the wire harness is provided with a sealing plug matched with the wire harness outlet. The end of the wire harness is provided with a terminal, and the terminal penetrates into the wire harness outlet to be spliced with an electric element in the main body assembly, namely a fuse. The fuse box is complex in overall structure, and the wire harness and the fuse wire are connected through a plurality of terminals, so that the size of the fuse box is further increased. Moreover, all fuses are integrated in one fuse box, which is inconvenient for layout of the circuit.

Disclosure of Invention

The utility model provides a wire harness fuse which overcomes the defects existing in the background technology. The technical scheme adopted for solving the technical problems is as follows:

the utility model provides a pencil fuse, it includes lower casing, goes up casing, fuse body, first wire and second wire, go up the casing rigid coupling and enclose into the holding chamber that runs through from front to back on lower casing and between last casing and the lower casing, the inner core of first wire and the inner core of second wire rigid coupling are at the front and back both ends of fuse body respectively, the fuse body is installed at holding intracavity and first wire, second wire outwards stretch out from the front and back both ends of holding chamber respectively.

In a preferred embodiment, the two sides of the fuse body are respectively provided with a connecting plate, the inner core of the first wire is inserted into one end of each of the two connecting plates, and the inner core of the second wire is inserted into the other end of each of the two connecting plates, and the first wire is connected and fixed with the fuse body and the second wire is connected and fixed with the fuse body in a welding manner.

In a preferred embodiment, the accommodating cavity is provided with a first baffle and a second baffle, and the fuse body is limited between the first baffle and the second baffle.

In a preferred embodiment, the top surface of the lower housing is provided with a positioning portion, the bottom surface of the upper housing is provided with a positioning matching portion, and the positioning portion is matched with the positioning matching portion in a positioning manner.

In a preferred embodiment, the positioning portion is a positioning post, and the positioning matching portion is a positioning hole; or, the positioning part is a positioning hole, and the positioning matching part is a positioning column.

In a preferred embodiment, the lower housing is provided with a lower riveting hole, the upper housing is provided with an upper riveting hole, and a rivet is further provided, and is riveted between the upper riveting hole and the lower riveting hole.

In a preferred embodiment, a glue layer is further disposed between the top surface of the lower housing and the top surface of the upper housing.

In a preferred embodiment, the outer surface of the first wire and the outer surface of the second wire are respectively in interference fit with the openings at the front end and the rear end of the accommodating cavity.

In a preferred embodiment:

compared with the background technology, the technical proposal has the following advantages:

1. this pencil fuse structure has simplified prior art with the structure of pencil and fuse body integration in the fuse box, and the structure of whole fuse is small and exquisite, and it divides into independent wire with the pencil among the prior art, forms single fuse, can directly insert in the circuit, and is more convenient in actual circuit layout.

2. The inner core of the first lead and the inner core of the second lead are respectively inserted into the two ends of the two connecting plates and are connected and fixed in a welding mode, so that the connection is ensured to be firmer.

3. The fuse body is limited between the first baffle and the second baffle, so that the fuse body is prevented from shaking in the accommodating cavity.

4. The upper shell and the lower shell can be positioned by the positioning part and the positioning matching part.

5. And a colloid layer is further arranged between the top surface of the lower shell and the top surface of the upper shell, so that the tightness of the shell can be improved.

6. The outer surfaces of the first lead and the second lead are respectively in interference fit with the openings at the front end and the rear end of the accommodating cavity, so that the tightness of the shell can be improved.

Drawings

The utility model is further described below with reference to the drawings and examples.

Fig. 1 is an overall schematic diagram of a wire harness fuse according to a preferred embodiment.

Fig. 2 is an exploded perspective view of a wire harness fuse according to a preferred embodiment.

Fig. 3 is a schematic diagram showing a connection structure of the first conductive wire, the second conductive wire and the fuse body according to a preferred embodiment.

Fig. 4 is a schematic diagram showing a connection state of the lower housing, the first conductive wire, the second conductive wire, and the fuse body according to a preferred embodiment.

Detailed Description

In the claims, specification and drawings hereof, unless explicitly defined otherwise, the terms "first," "second," or "third," etc. are used for distinguishing between different objects and not for describing a particular sequential order.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, references to orientation or positional relationship such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. are based on the orientation and positional relationship shown in the drawings and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, nor should it be construed as limiting the particular scope of the utility model.

In the claims, specification and drawings of the present utility model, unless explicitly defined otherwise, the terms "fixedly attached" and "fixedly attached" are to be construed broadly as any manner of connection without any positional or rotational relationship between the two, i.e. including non-removable, fixed, integrally connected, and fixedly connected by other means or elements.

In the claims, specification and drawings of the present utility model, the terms "comprising," having, "and variations thereof as used herein, are intended to be" including but not limited to.

Referring to fig. 1 to 4, a preferred embodiment of a wire harness fuse includes a lower housing 10, an upper housing 20, a fuse body 30, a first wire 40 and a second wire 50.

The upper housing 20 is fixedly connected to the lower housing 10, a containing cavity 21 penetrating front and back is defined between the upper housing 20 and the lower housing 10, the inner cores 41 of the first wire 40 and the inner cores 51 of the second wire 50 are respectively fixedly connected to front and back end portions of the fuse body 30, the fuse body 30 is installed in the containing cavity 21, and the first wire 40 and the second wire 50 respectively extend out from front and back end portions of the containing cavity 21.

In this embodiment, the top surface of the lower housing 10 is provided with a positioning portion, the bottom surface of the upper housing 20 is provided with a positioning mating portion, and the positioning portion is in positioning mating with the positioning mating portion.

Specifically, as shown in fig. 2, the positioning portion is provided with two groups, one group is a positioning column 11, and the other group is a positioning hole 12; the positioning mating portion is also provided with two sets, one set is a positioning hole (not shown in the figure), and the other set is a positioning post 22. By the positioning matching of the positioning posts and the positioning holes, dislocation of the upper shell 20 and the lower shell 10 in the installation process can be avoided.

In this embodiment, as shown in fig. 2, the lower housing 10 is provided with a lower riveting hole 13, the upper housing 20 is provided with an upper riveting hole 23, and a rivet 60 is further provided, and the rivet 60 is riveted between the upper riveting hole 23 and the lower riveting hole 13.

In this embodiment, a glue layer (not shown) is further disposed between the top surface of the lower housing 10 and the top surface of the upper housing 20, so as to improve the sealing performance of the housing.

In this embodiment, the outer surfaces of the first wire 40 and the second wire 50 are respectively in interference fit with the openings at the front and rear ends of the accommodating cavity 21, so as to improve the tightness of the housing.

In this embodiment, the two sides of the fuse body 30 are respectively provided with a connecting plate 31, the inner core 41 of the first wire 40 is inserted into one end of the two connecting plates 31, the inner core 51 of the second wire 50 is inserted into the other end of the two connecting plates 31, and the first wire 40 is connected and fixed with the fuse body 30, and the second wire 50 is connected and fixed with the fuse body 30 by welding.

In this embodiment, a first baffle 211 and a second baffle 212 are disposed in the accommodating cavity 21, and the fuse body 30 is limited between the first baffle 211 and the second baffle 212.

The assembly process of the fuse is as follows:

as shown in fig. 3, the core 41 of the first wire 40 and the core 51 of the second wire 50 are inserted into the two ends of the fuse body 30, respectively, and then the soldering operation is performed;

next, as shown in fig. 4, the welded fuse body 30 is placed in the accommodating cavity 21 of the lower case 10 and between the first and second baffles 211 and 212 to limit the fuse body 30, and the first and second wires 40 and 50 are protruded outwardly from both end openings of the lower case 10, respectively;

then, glue is coated on the top surface of the lower shell 10 or the top surface of the upper shell 20, the upper shell 20 is covered on the lower shell 10, positioning columns are matched with the positioning holes in a positioning way, and the upper shell 20 and the lower shell 10 are pressed tightly;

finally, the lower case 10 and the upper case 20 are finally fixed by rivets 60. The assembly of the entire fuse is completed.

This pencil fuse structure has simplified prior art with the structure of pencil and fuse body integration in the fuse box, and the structure of whole fuse is small and exquisite, and it divides into independent wire with the pencil among the prior art, forms single fuse, can directly insert in the circuit, and is more convenient in actual circuit layout. When a plurality of harness fuses are required, the plurality of harness fuses may be connected in parallel.

The foregoing description is only illustrative of the preferred embodiments of the present utility model, and therefore should not be taken as limiting the scope of the utility model, for all changes and modifications that come within the meaning and range of equivalency of the claims and specification are therefore intended to be embraced therein.

Claims

1. A wire harness fuse, characterized in that: the fuse comprises a lower shell, an upper shell, a fuse body, a first wire and a second wire, wherein the upper shell is fixedly connected on the lower shell, a containing cavity penetrating through the lower shell from front to back is formed between the upper shell and the lower shell, an inner core of the first wire and an inner core of the second wire are fixedly connected at front and rear end parts of the fuse body respectively, and the fuse body is arranged in the containing cavity and the first wire and the second wire extend out from front and rear ends of the containing cavity respectively.

2. A wire harness fuse as claimed in claim 1, wherein: the fuse is characterized in that connecting plates are arranged on two sides of the fuse body, the inner core of the first wire is inserted into one end of each of the two connecting plates, the inner core of the second wire is inserted into the other end of each of the two connecting plates, and the first wire is connected and fixed with the fuse body and the second wire is connected and fixed with the fuse body in a welding mode.

3. A wire harness fuse as claimed in claim 2, wherein: the accommodating cavity is internally provided with a first baffle and a second baffle, and the fuse body is limited between the first baffle and the second baffle.

4. A wire harness fuse as claimed in claim 1, wherein: the top surface of the lower shell is provided with a positioning part, the bottom surface of the upper shell is provided with a positioning matching part, and the positioning part is matched with the positioning matching part in a positioning way.

5. A wire harness fuse as claimed in claim 4, wherein: the positioning part is a positioning column, and the positioning matching part is a positioning hole; or, the positioning part is a positioning hole, and the positioning matching part is a positioning column.

6. A wire harness fuse as claimed in claim 1, wherein: the lower shell is provided with a lower riveting hole, the upper shell is provided with an upper riveting hole, and a rivet is further arranged between the upper riveting hole and the lower riveting hole.

7. A wire harness fuse as claimed in claim 6, wherein: and a colloid layer is also arranged between the top surface of the lower shell and the top surface of the upper shell.

8. A wire harness fuse as claimed in claim 6, wherein: the outer surfaces of the first lead and the second lead are respectively in interference fit with the openings at the front end and the rear end of the accommodating cavity.